May weather forecast
Columbia, SC

The Us State House of South Carolina, in Columbia, with the Wade Hampton Statue
The Us State House of South Carolina, in Columbia, with the Wade Hampton Statue

Weather in May

May, the last month of the spring in Columbia, is another warm month, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 63.1°F (17.3°C).

Temperature

In Columbia, the average high-temperature in May marginally rises from a warm 73.9°F (23.3°C) in April to a still moderately hot 81.3°F (27.4°C). In Columbia, in May, the average low-temperature is 63.1°F (17.3°C).

Heat index

In May, the average heat index is evaluated at 85.8°F (29.9°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In May, the average relative humidity in Columbia, South Carolina, is 73%.

Rainfall

In Columbia, during 13.8 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Columbia, during the entire year, the rain falls for 141.3 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

In Columbia, the average length of the day in May is 13h and 56min.
On the first day of May in Columbia, South Carolina, sunrise is at 6:34 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:29 pm EDT.

Sunshine

The average sunshine in May in Columbia is 9.8h.

UV index

In Columbia, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Columbia?

The average high-temperature, in May, is 81.3°F (27.4°C), while the average low-temperature is 63.1°F (17.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in May is evaluated at 85.8°F (29.9°C).

What is the average humidity in May in Columbia?

The average relative humidity in May in Columbia is 73%.

How much does it rain in Columbia in May?

In Columbia, in May, during 13.8 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow in Columbia?

In Columbia, snow does not fall in March through November.

What is the average length of the day in May in Columbia?

In Columbia, South Carolina, the average day length in May is 13h and 56min.

When are sunrise and sunset in May in Columbia?

In May, on the first day of the month, sunrise is at 6:34 am and sunset at 8:07 pm. On the last day of the month, in Columbia, sunrise is at 6:14 am and sunset at 8:29 pm EDT.

How many hours of sunshine does Columbia have in May?

In Columbia, South Carolina, the average sunshine duration in May is 9.8h.

What is the UV index reading in May in Columbia?

The average daily maximum UV index in May in Columbia, South Carolina, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Columbia, SC

Average temperature in May - Columbia, SC
  • Average high temperature in May: 81.3°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (52.9°F).

  • Average low temperature in May: 63.1°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in May
Columbia, SC

Average pressure in May - Columbia, SC
  • Average pressure in May: 30.02"Hg

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in May
Columbia, SC

Average wind speed in May - Columbia, SC
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in May
Columbia, SC

Average humidity in May - Columbia, SC
  • Average humidity in May: 73%

The month with the highest relative humidity is December (74%).
The months with the lowest relative humidity are January, July and November (69%).

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Average rainfall in May
Columbia, SC

Average rainfall in May - Columbia, SC
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in May
Columbia, SC

Average rainfall days in May - Columbia, SC
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (7.3 days).

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Average snowfall in May
Columbia, SC

Average snowfall in May - Columbia, SC
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.47").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Columbia, SC

Average snowfall days in May - Columbia, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Columbia, SC

Average daylight in May / Average sunshine in May - Columbia, SC
  • Average daylight in May: 13h and 56min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in May: 9h and 48min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in May
Columbia, SC

Average sunshine days in May - Columbia, SC
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is October (22.7 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in May
Columbia, SC

Average UV index in May - Columbia, SC
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in May
Columbia, SC

Average cloud cover in May - Columbia, SC
  • Average cloud cover in May: 34

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).

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Average visibility in May
Columbia, SC

Average visibility in May - Columbia, SC
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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